US194383A - Improvement in railroad-gates - Google Patents
Improvement in railroad-gates Download PDFInfo
- Publication number
- US194383A US194383A US194383DA US194383A US 194383 A US194383 A US 194383A US 194383D A US194383D A US 194383DA US 194383 A US194383 A US 194383A
- Authority
- US
- United States
- Prior art keywords
- gate
- gates
- railroad
- alarm
- improvement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000004888 barrier function Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/02—Guards or obstacles for preventing access to the route
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/43—Motors
- E05Y2201/434—Electromotors; Details thereof
Definitions
- Figure l is a perspective view of my improved railroad-gate.
- Fig. 2 is a ground plan, showing the manner of connecting and operating the two gates.
- Fig. 3 is a section of one of the gate-posts.
- Fig. 4 is an enlarged view of the alarm and operating mechanism.
- a a and b b are the gatearms extending across the roadway, and placed on each side of the railroad.
- the long end is counterbalanced by weights 0 c, and they are supported on the posts or standards d d, on each side of the standard, their longer ends being brought together, or nearly together, and firmly secured, so that they will brace each other and form a strong barrier.
- E E are posts [placed on the opposite sides of the roadway from where the posts or standards d d are placed, and are arranged to receive and support the free ends of the gatebars a a and b b, as shown.
- F F are the railroad-tracks, on each side of which the gates are erected, so as to control the crossing and prevent accidents.
- the two gates are connected by means of chains, cords, or wire rope, so that both gates may be opened and closed simultaneously; and to operate the gates from any given point, such as a gate-house, the handlever g is secured to a shaft, on which the drum h revolves. To the drum it both ends of the wire rope are secured, one end passing over the sheave t to one of the standards, and the other over the sheave l to the other standard, where they pass over the sheave m, secured to the shaft to which the gate-arms are secured; and to insure certamty of action simultaneously, the rope,
- a ratchet-segment, n is shown attached to the gate-post or standard, and the spring-pressed pawl o to the gate-arm.
- a rod extends from the pawl o to the hammer or striker 10, and the motion of the pawl 0 over the ratchet n communicates a striking action to the hammer p, and causes the gong q to vibrate, and thus give an alarm as the gate closes.
- the alarm may be attached to other gates not arranged and operated as the gates sh own, and may be operated by simple mechanism when the gate is being closed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Description
UNITED STATES PATENT OFFICE.
HENRY A. STEARNS, OF PAWTUGKET, RHODE ISLAND.
IMPROVEMENT IN RAILROAD-GATES.
" Specification forming part of Letters Patent No. 194,383, dated August 21, 1877 application filed October 28, 1876.
fication.
Figure l is a perspective view of my improved railroad-gate. Fig. 2 is a ground plan, showing the manner of connecting and operating the two gates. Fig. 3 is a section of one of the gate-posts. Fig. 4 is an enlarged view of the alarm and operating mechanism.
Similar letters of reference indicate corresponding parts.
In the drawings, a a and b b are the gatearms extending across the roadway, and placed on each side of the railroad. The long end is counterbalanced by weights 0 c, and they are supported on the posts or standards d d, on each side of the standard, their longer ends being brought together, or nearly together, and firmly secured, so that they will brace each other and form a strong barrier.
E E are posts [placed on the opposite sides of the roadway from where the posts or standards d d are placed, and are arranged to receive and support the free ends of the gatebars a a and b b, as shown.
F F are the railroad-tracks, on each side of which the gates are erected, so as to control the crossing and prevent accidents.
The two gates are connected by means of chains, cords, or wire rope, so that both gates may be opened and closed simultaneously; and to operate the gates from any given point, such as a gate-house, the handlever g is secured to a shaft, on which the drum h revolves. To the drum it both ends of the wire rope are secured, one end passing over the sheave t to one of the standards, and the other over the sheave l to the other standard, where they pass over the sheave m, secured to the shaft to which the gate-arms are secured; and to insure certamty of action simultaneously, the rope,
In railroad-gates it is desirable that some alarm shall be sounded when the gate is closed, so as to give notice to the ear as well as to the eye that it is dangerous to cross the railroad-track; and in situations where many trains pass at frequent intervals, and the crossing is also used by numerous teams or persons, the gate-keepers time is so well occupied that he cannot give the desired alarm. To obviate this difficulty, I connect the alarm directly with the gate, so that the closing of the gate will operate the alarm.
Different means may be employed to ring the gong, and it is obvious that the gong may be placed on the gate or on the posts. I therefore show one of the means that may he employed to sound the alarm.
In Fig. 4 a ratchet-segment, n, is shown attached to the gate-post or standard, and the spring-pressed pawl o to the gate-arm. A rod extends from the pawl o to the hammer or striker 10, and the motion of the pawl 0 over the ratchet n communicates a striking action to the hammer p, and causes the gong q to vibrate, and thus give an alarm as the gate closes.
The alarm may be attached to other gates not arranged and operated as the gates sh own, and may be operated by simple mechanism when the gate is being closed.
Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. The combination, with agate-standard, of a bifurcated and counterbalanced gate-bar, the two arms of which are rigidly secured to the opposite ends of the actuating-shaft, substantially as described.
2. The combination, with a railway-gate, of a ratchet bar or plate, 12, pawl 0, hammer p, and'alarm-bell q, the several parts arranged substantially as set forth to sound an alarm when the gate is being closed.
HENRY A. sTEAuns.
Publications (1)
Publication Number | Publication Date |
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US194383A true US194383A (en) | 1877-08-21 |
Family
ID=2263789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US194383D Expired - Lifetime US194383A (en) | Improvement in railroad-gates |
Country Status (1)
Country | Link |
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US (1) | US194383A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060176044A1 (en) * | 2005-01-23 | 2006-08-10 | Serconet Ltd. | Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance |
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0
- US US194383D patent/US194383A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060176044A1 (en) * | 2005-01-23 | 2006-08-10 | Serconet Ltd. | Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance |
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